org.apache.flink.runtime.state.changelog

Interface SequenceNumberRange

All Known Implementing Classes:

SequenceNumberRange.GenericSequenceNumberRange

public interface SequenceNumberRange

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static class	SequenceNumberRange.GenericSequenceNumberRange

Method Summary

Modifier and Type	Method and Description
boolean	contains(SequenceNumber sqn)
SequenceNumber	from() Inclusive.
static SequenceNumberRange	generic(SequenceNumber from, SequenceNumber to)
boolean	isEmpty()
long	size()
SequenceNumber	to() Exclusive.

Method Detail

from

SequenceNumber from()

Inclusive.

to

SequenceNumber to()

Exclusive.

size

long size()

Returns:

the size of this range (positive) or zero if it is empty

contains

boolean contains(SequenceNumber sqn)

Returns:

true if from() ≤ sqn < to() (this implies that the range is not empty, i.e. to > from)

isEmpty

boolean isEmpty()

Returns:

true if from() ≥ to(), false otherwise.

generic

static SequenceNumberRange generic(SequenceNumber from,
                                   SequenceNumber to)

Parameters:

from - inclusive

to - exclusive